1
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
During replication of a bacterial chromosome DNA synthesis starts from a replication origin site and
A
RNA primers are involved
B
is facilitated by telomerase
C
moves in one direction of the site
D
moves in bi-directional way.
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Viruses that infect bacteria multiply and cause their lysis, are called
A
lysozymes
B
lipolytic
C
lytic
D
lysogenic.
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Which of the following statements is not true for retroviruses?
A
DNA is not present at any stage in the life cycle of retroviruses.
B
Retroviruses carry gene for RNA-dependent DNA polymerase.
C
The genetic material in mature retroviruses is RNA.
D
Retroviruses are causative agents for certain kinds of cancer in man.
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements about viruses is correct?
A
Viruses possess their own metabolic system.
B
All viruses contain both RNA and DNA .
C
Viruses are obligate parasites.
D
Nucleic acid of viruses is known as capsid.

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